The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 6 |
| 6 | 4 |
| 7 | 5 |
| 8 | 30 |
| 9 | 51 |
| 10 | 26 |
| 11 | 12 |
| 12 | 146 |
| 13 | 474 |
| 14 | 576 |
| 15 | 236 |
| 16 | 33 |
| 17 | 719 |
| 18 | 3950 |
| 19 | 8572 |
| 20 | 8060 |
| 21 | 2752 |
| 22 | 90 |
| 23 | 3590 |
| 24 | 31464 |
| 25 | 108416 |
| 26 | 175380 |
| 27 | 134136 |
| 28 | 39208 |
| 29 | 261 |
| 30 | 18283 |
| 31 | 245916 |
| 32 | 1262732 |
| 33 | 3124650 |
| 34 | 4014348 |
| 35 | 2584568 |
| 36 | 660032 |
| 37 | 766 |
| 38 | 94648 |
| 39 | 1908858 |
| 40 | 14047288 |
| 41 | 49885320 |
| 42 | 95715728 |
| 43 | 101799712 |
| 44 | 56555904 |
| 45 | 12818912 |
[1,1,1,2,6,4,5,30,51,26,12,146,474,576,236,33,719, 3950,8572,8060,2752,90,3590,31464,108416,175380, 134136,39208,261,18283,245916,1262732,3124650, 4014348,2584568,660032,766,94648,1908858,14047288, 49885320,95715728,101799712,56555904,12818912] |